Everything changes for thirteen-year-old Aster the night her brother dies.
Suddenly she's the only hope of the family, and instead of an early marriage to a boy from her small village in Pakistan, her parents decide to send her to the government high school in her brother's place.
Aster is excited about this unexpected opportunity for a career, but, as a Christian, she is unprepared her for the difficulties of attending a Muslim school: her fellow students are far from welcoming and one of her teachers takes an instant dislike to her.
One day, she is accused of intentionally making a spelling mistake to insult the holy prophet.
Her teacher is incensed and accuses her of blasphemy.
A violent crowd forms outside the school and Aster is taken to jail to be tried at a later date.A young social justice lawyer takes up her case, and Aster's Australian cousin, Maryam, starts an online campaign to free Aster.
But will it be enough to save her?